Fibre container



Oct. 4, 1955 R. D. IMINTEER ET AL FIBRE CONTAINER 2 Sheets-Sheet 1 FiledMarch 14, 1952 IIIIIIIIIII INVENTORS M 2 MW? M fi 1J4 wp A,

F HHHIWIHHIIHIH FITTORNEYS Oct. 4, 1955 R. D. YMINTEER ET AL FIBRECONTAINER United States Patent f) FIBRE CONTAINER Robert D. Minteer,Webster Groves, andLester B. Leighton, Clayton, Mo., assignorstmThaGreifBros. Cooperage- Corporation, Delaware, Ohio, ar corporation; of.

This invention relates. to.an improved. fibre. drum or container.

Fibre drums and-containers are. characterized .by a:tu-

bular body portion made ofconvolutely wound, layers-of. Drums: and.containers :of;

kraftor similar. fibre board. this type are frequently usedforbnlleshipments .of chem: icals, raw materials. or the. like.- As.originally. shipped from the manufacturer, acertain type. oflabellingisrer.

quired or desired on the outer surface-ofthe. container. In the courseof merchandising the materials, it is frequently necessary or desirabletochange the labelling. This procedure has required the use.ofextraneousdabelling which impairs the appearance-of the container orhasrequired reprinting, repainting. orotherwise mutilating the surfaceof the container.

Itis an object ofthe present invention to. overcomethese difiicultiesand disadvantages. and to provide any improved fibre drum or. containerhaving aremovable sheath encasing the body portion and presentingthesame:

appearance as the surfaceof the container.to which.the original markingor labelling may be applied. Thereafter, during the course ofmerchandisingor using theproduct, the sheath may be readily removed whenre labelling is required, or desired, without impairingthev appearanceof the container so as to expose the. surface of the body of thecontainer.

A further object is the provision of. a: fibre. drum or containerhavingan improved removable. sheath, of: the.

above character whicliissecured in position and assem; bled with thedrum in an improved'fashion so as -.to.:sim-.

' locking rim removed, showing the sheath in the process of beingremoved from the drum;

Fig. 3 is a side elevational view of the assembled drum after the sheathhas been fully removed;

Fig. 4 is a detailed sectional view of the upper portion of the drumafter the sheath has been removed;

Fig. 5 is an elevational view partially in longitudinal section showingthe assembled drum in its original condition with the sheath appliedthereto;

Fig. 6 is an enlarged sectional detailed View, with the central portionomitted, of one side wall of the drum in its original condition with thesheath applied thereto; and

Fig. 7 is a cross-sectional view in the direction of the arrows on theline 77 of Fig. 5.

Our invention is applicable to fibre drums or containers. The expressionfibre drums or containers is used in the trade to designate containershaving a tubular body made from laminated layers of convolutely woundfibre material such as kraft board. The body portion of the drumsaregenerally formedby,windingkraft. or fibre board, to, whichanadhesive. or resinhas been.

applied, around a mandrel until a drumbody of :the re quired-strengthand thickness: has .been.formed.

In the accompanying drawings we.-ha ve illustrated ourv invention asappliedto one type of fibre drum-or con: tainer. having a tubular bodyportion 1 0 .with;a. bottom.

The body of the containeris tubular in formandhas a. side wall 15 formedoflaminated'convolutely wound;

layers of kraft or fibre board.

The bottom closure 11 consists-ofa metal disc'16- which may haveanon-metallic. sealer-gasket 17 on. the.

inner surface thereof. The metaldiscand non-metallic.

gasket extend downwardly as .shown in Fig. 6, over. the lower. end ofthe container wall and then are extended outwardly into beadedinterengagement with the body-v Wall; The. interengagemen-t maybeaccomplished in-the manner taughtin patent applicationSerial No.99-,476 of Herbert.L., Carpenter filed June/.16, 1949., for FibreDrums,HavingMetalClosures and-Method of Making the .Same, by flaring thelowerendv of the body wallouta wardly. before the. adhesive hasv setandwhile the larni nated wall is stillworkable and, thereafterapplyingthe metal disc and gasket and rolling them inwardly with theflarfid end 1 of the laminatedfbody Wall into a tight, beadedinterengagement. It will be understoodofcourse that any other type ofbottom closure may be usedwith the drum.

Near its. upper-end, the body wall 15 is .deformedor beaded inwardly asshown at 19 so as toprovide an internalrib. and an external gtQQve inregistry witheach otherspaceda short distance beneath the pp'er end ofthe container. The binding or reinforcing rim 12 preferably takes theform of a. metal sheet or strip tightly embracing the outer surface ofthe upper end of the body walland fitted tightly into the grooveasshown. It isalso extended-overthe top surface, ofthe bodyportion andcrimped inwardly as shownatlflin Fig. 6 so thatthe crimping 2.0. andthe, interengagementwith. the groove.-

serves. to. hold the binding or riminplace.

The removable head or closure l3 may be of any desired typeembracingresting on, .or. fitting into the upper end of the container.In the illustrated embodiment the head takes the form of a woodenportion 13 fitted into the upper end of the container and resting on theinternal rib and a supplementary head or gasket 21. made ofstrong-papenfibre board; plastic or metalextending over the innersurface ofthe wooden h'ead thence upwardly over the top surface of thebody wall and downwardly for a short distance over the outer surface ofthe side wall as shown most clearly in Figs. 4 and 5.

The split clamping ring 14 is in the form of a split metal band of asize to embrace the end of the container body with its two ends inoverlapping relationship. Locking rims of this type are shown in priorPatent No. 2,382,858 of Herbert L. Carpenter granted on August 14, 1945,and are provided with an apron portion 22 which engages in the externalgroove and with an inturned flange 23 which overlaps the head or closure13. The interengagement between the clamping ring and the externalgroove together with the overlapping of the head serves to hold theclosure in place. The clamping ring may be expanded to release it orcontracted to lock it by means of lever 24 which extends between the twooverlapping ends of the locking ring 14 and is pivotally Patented. Oct.4,, 1 .95

connected at 25 and 26 respectively to the two ends of the ring. Whenthe lever is in horizontal position the ring is contracted and when thelever is elevated the ring is expanded. The pivotal pin 25 is positionedpast center with respect to the pivotal pin 26 so as normally to retainthe ring in contracted or locked position. A small strap 27 may bestruck outwardly from the surface of the ring to interengage with thehooked end portion of the lever 24 when it is in locked position. Whenthe lever is in horizontal position and in engagement with the strap 27the ring is contracted and will serve to retain the cover in place.

The drum as heretofore described is one type of drum to which ourinvention is applicable but it will be understood that our invention maybe applied to other types of convolutely wound fibre drums andcontainers.

Our invention resides primarily in the provision of a sheath 30embracing the body wall and preferably taking the form of a layer offibrous material similar to the kraft or fibre board from which the bodywall is made. The sheath is preferably free from any direct attachmentby adhesives, nails, staples, rivets, or the like with the side wall. Itis held in place by being tightly extended around the body wall with thetwo edges in overlapping relationship as shown at 31. The sheath isapplied to the body wall before the binding or protecting rim 12 issecured in place and extends from approximately the upper portion of theexternal groove downwardly to a point immediately adjacent the bead.

18. When the binding or protecting rim 12 is applied to the upper end ofthe container and secured in place it embraces the end of the sheath asshown at 32 thereby frictionally holding the sheath in place.

When the drum is completed the sheath 30 presents the same appearance asthe outer surface of the container body and the casual observer wouldnot realize that the drum was provided as an extraneous sheath.

Suitable labelling or printed matter may be applied both to the surfaceof the drum body 15 and to the surface of the sheath 30. The labellingmaterial and information contained on the sheath 30 may be applicable tothe initial shipment and merchandising of the contents of the container,whereas the labelling appearing on the surface of the body 15 may beapplicable to subsequent merchandising operations or to the use of theproduct. When the labelling appearing on the outer sheath has served itspurpose the sheath may be slit longitudinally from the lower edge ofbinding 12 to the bottom of the sheath and thereafter pulled outwardlyso that it tears along the lower edge of the binding 12. In this fashionthe edge of rim 12 serves as a cutting edge in the nature of a straightedge or paper knife along which the sheath is severed. Under certaincircumstances the sheath may fit loosely enough beneath the binding 12so that it may be completely removed from beneath the binding. However,in other cases the binding frictionally grips the sheath and the sheathis severed along the binding, leavby the other set of markings.

ing the upper edge of the sheath beneath thebinding as shown at 32 inFig. 4.

In those cases where the locking ring 14 extends downwardly beneath thelower end of binding 12 it may be desirable to remove the locking ring14 before severing the sheath. Thus, in Fig. 2 the drum is illustratedwith the locking ring removed and with the sheath in the process ofbeing severed along the lower edge of binding 12. After the sheath isremoved the drum continues to present the same complete appearance as itoriginally presented with a ditferent surface exposed on which new andadditional labelling is or can be displayed.

I It will thus be seen that we have provided an improved drum orcontainer having a tubular body made of laminated convolutely woundlayers of fibrous material having an encasing sheath presentingsubstantially the "same appearance as the surface of the tubular bodyand which can be readily removed to expose the body surface. It willalso be seen that suitable indicia, markings or labelling material maybe applied both to the body surface and to the sheath so that one set ofmarkings is originally displayed and when desired can be readilyreplaced Modifications may of course be made in the illustrated anddescribed embodiment of our invention without departing from ourinvention as set forth in the accompanying claims.

We claim: 7

An improved fibre drum comprising: a tubular body portion made ofconvolutely wound laminated layers of fibrous material; a'bottom closuresecured to the lower end of the body portion; a metal binding striptightly embracing the outer surface of the upper end of said bodyportion; and a sheath made of a layer of fibrous material substantiallysimilar to the material of the body portion tightly surrounding the bodyportion with its longitudinal edges secured to each other in overlappingrelationship and with its upper edge positioned between the binding andthe body portion so as to be frictionally held in position with theremainder of the sheath being free from attachment to the body portion,said sheath extending from the binding strip to a point adjacent thebottom closure so as to present the same external appearance as the bodyportion of the drum and said metal binding presenting a relativelystraight cutting edge along the lower surface thereof whereby the sheathmay be readily severed along the binding to be removed from the drum.

References Cited in the file of this patent UNITED STATES PATENTS223,949 Preater Jan. 27, 1880 1,974,401 Miller Sept. 18, 1934 2,188,497Calva Jan. 30, 1940 2,290,536 Chamberlain July 21, 1942 2,337,656Haycock Dec. 28, 1943 2,614,349 Barnes Oct. 21, 1952

